本数据集在评价已经有土地覆盖数据的基础上,基于证据理论,将2000年中国1:10万土地利用数据、中国植被图集(1:100万)的植被型分类、中国1:10万冰川图、中国1:100万沼泽湿地图和MOD IS 2001年土地覆盖产品(MOD12Q1)进行了融合,最终基于最大信任度原则进行决策,产生了新的、IGBP分类系统的2000年中国土地覆盖数据。\n\n
新的土地覆盖数据在保持了中国土地利用数据的总体精度的同时,补充了中国植被图中对植被类型及植被季相的信息,更新了中国湿地图,增加了中国冰川图最新信息,使分类系统更加通用。", "ds_source": "
本数据集在评价已经有土地覆盖数据的基础上,基于证据理论,将2000年中国1:10万土地利用数据、中国植被图集(1:100万)的植被型分类、中国1:10万冰川图、中国1:100万沼泽湿地图和MOD IS 2001年土地覆盖产品(MOD12Q1)进行了融合,最终基于最大信任度原则进行决策,产生了新的、IGBP分类系统的2000年中国土地覆盖数据。", "ds_process_way": "
影像融合", "ds_quality": "
数据质量优", "ds_acq_start_time": "2000-01-01 00:00:00", "ds_acq_end_time": "2000-12-31 00:00:00", "ds_acq_place": "中国地区", "ds_acq_lon_east": 135.5, "ds_acq_lat_south": 17.75, "ds_acq_lon_west": 73.19972222222222, "ds_acq_lat_north": 53.86638888888889, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "open-access", "ds_total_size": 5959898, "ds_files_count": 3, "ds_format": "矢量", "ds_space_res": "", "ds_time_res": "年", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_thumbnail": "e6389fc2-825b-4d76-8a97-c73a19570307.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2021-01-08 11:29:05", "last_updated": "2026-01-26 16:39:50", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.583", "i18n": { "en": { "title": "One kilometer land cover map of China based on multi-source data fusion method", "ds_format": "Vector", "ds_source": "
Based on the evaluation of existing land cover data and evidence theory, this dataset integrates 1:100000 land use data from China in 2000, vegetation type classification from China Vegetation Atlas (1:100000), 1:100000 glacier map from China, 1:100000 swamp wet map from China, and MODIS 2001 land cover product (MOD12Q1). Ultimately, decisions are made based on the principle of maximum trust, resulting in new China's land cover data from the IGBP classification system in 2000.", "ds_quality": "
Excellent data quality", "ds_ref_way": "", "ds_abstract": "
Based on the evaluation of existing land cover data and evidence theory, this dataset integrates 1:100000 land use data from China in 2000, vegetation type classification from China Vegetation Atlas (1:100000), 1:100000 glacier map from China, 1:100000 swamp wet map from China, and MODIS 2001 land cover product (MOD12Q1). Ultimately, decisions are made based on the principle of maximum trust, resulting in new China's land cover data from the IGBP classification system in 2000.\n
The new land cover data not only maintains the overall accuracy of China's land use data, but also supplements the information on vegetation types and vegetation seasons in China's vegetation map, updates the wet map of China, and adds the latest information on China's glacier map, making the classification system more universal.
", "ds_time_res": "年", "ds_acq_place": "China", "ds_space_res": "", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_process_way": "Image fusion", "ds_ref_instruction": "When users use data, please: first, clearly state the source of the data in the text, and refer to the references suggested in this metadata.\r\nRelated literature (recommended by the author)\r\nRan Youhua, Li Xin, Lu Ling, 1 km land cover classification mapping in China based on multi-source data fusion [J], progress in Earth Science, 2009, (02): 192-203\r\nYouhua ran, Xin Li & Ling Lu (2010): evaluation of four remote sensing based land cover products over China, International Journal of remote sensing, 31:2, 391-401\r\nYouhua Ran, Xin Li, Ling Lu & Zengyuan Li. (2012): Large-scale land cover mapping with the integration of multi-source information based on the Dempster–Shafer theory, International Journal of Geographical Information Science, DOI:10.1080/13658816.2011.577745" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "土地覆盖", "土地利用", "土地分类" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中国" ], "ds_time_tags": [ 2000 ], "ds_contributors": [ { "true_name": "冉有华", "email": "ranyh@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "冉有华", "email": "ranyh@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "冉有华", "email": "ranyh@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "生态" }